Date:         Wed, 15 Oct 1997 12:53:40 -0700
Reply-To:     Denys Mueller <Denys@IX.NETCOM.COM>
Sender:       Vanagon mailing list <Vanagon@Gerry.SDSC.EDU>
From:         Denys Mueller <Denys@IX.NETCOM.COM>
Organization: Denys Mueller - Project Mgmt Professional
Subject:      Re: Troubleshooting Question
Comments: To: Joel Walker <JWALKER@UA1VM.UA.EDU>
Content-Type: text/plain; charset=us-ascii

Hi Joel and Listees,

Just thought you should know that VW has revised the part to correct the
misfire referred to in the following service bulletin. The new part
number is 025 906 302A. It seems that the old part 025 906 302 was not
correct.

Later,
Denys Mueller
'86 Westy
PO '80 & '86 Westys'


from Service Bulletins, Model Year 1992
........................................................................
Technical Bulletin
Group:    24
Number:   92-01
Date:     February 29, 1992
Subject:  Vanagon Intermittent Misfire
Model(s): All Vanagon Digifant Fuel Injection Engines

CONDITION
After driving for 1/2 to 2 hours at a constant speed, vehicle
experiences lack of power, cuts-out or stalls, often accompanied by
bucking or jerking of the vehicle.
In ALL cases, the vehicle will restart immediately.  This symptom may
not re-occur for several weeks/months.  Inspection by the dealer results
in nothing conclusive.

Some air-flow meters may experience a vibration resonance of the
metering potentiometer wiper during extended constant driving.  This
resonance causes the air-flow meter to supply an intermittent signal
to the Digifant ECU.  The ECU will then default to a "no-load" condition
and reduce the injection time.

SERVICE
Harness, Part No. 025 906 302, is available to resolve this condition.
* remove electrical connector from air flow sensor (see Figure 24-174)
* install converter assembly, Part No. 025 906 302, between harness and
  air flow sensor